Hardware Spec Index

Caldera SN-1951 SE 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN1951-SE · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index9,515 (SSDs scale)
Category rank#4,834
Street price$229
Power7 W (active)
Performance per dollar41.55
Released2024

Specifications

BrandCaldera
ModelCaldera SN-1951 SE
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,100 MB/s
Sequential write4,800 MB/s
Random 4K read1,290K IOPS
NAND3D TLC, 218-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 years
HeatsinkNone

Related guides

NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 4.0 vs PCIe 5.0

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Cite this page: Hardware Spec Index, “Caldera SN-1951 SE 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3067719 (accessed 2026-10-22).